Hollow cement block



May 21, 193.5. D. s. coRwlN 2,002,311

HOLLOW CEMENT BLOCK Filed June 4, 1954 n T -E- lNVETOR Z 1 E ad 10c lEMk/z, 52faf@@wwwv ATTORNEY Patented May 21, 1935 4PATE-NTln OFFICE y lu l.2,002,311 Y. HOLLW CEMENT BLOCK A f `Davia stanley Corwin.Green'ptrt, N. Y. `Application `.nine 4,1934, seriai No. 728,930

` solange. (o1. vs -12) 'UNITDjiSTAf-es i Thisinvention relates to newand .usefull improvements in `a. hollow cement block.. i

`The invention has foran object the construction of a block as mentionedwhich is characterized by the provision of an open meshreinforcementmaterial having a bottom and side walls, and.l supporting?` aAmoisture-proof plate extending across the top edges of the side wallsand held together in a unit by cement covering the inner and outer sidesof Vsaid open mesh reinforcement material and plate. A feature of theconstruction is that the block will be light in Weight, and since it ishollow it will oat;iit will also be water-proof because of its cementconstruction and moisture-proof because Yof the moisture-proof plate onone face, 'said face preferably shouldbe used as thefrontface.

Still further theinventionproposes the construction of a block asmentioned in thel previous paragraph which' is arranged in sucha mannerthat the front face may be finishedornamentally into differenteffects-as desired.

Still further it is proposed to` produce a block as mentioned whichreduires no backing or furring and which may be manufactured withoutresorting to pressures.. I

Still further the invention proposes tolsolarrange the block that it maybe built with or, without a form though of course, a form williexpediteits manufacture.` 1 f 1 i Stillifurther the invention proposes theteaching of a method by which the `block may be manufactured. l 1J'Another one ofthe objects of `this Vinvention is the construction of 'ablock which is characterized by a pair ofmoisture-proof plates slightlyspaced from `each other and in one ofthe walls thereof and in otherrespects resembling the block previously described as `tocharacteristics.

lStill further they invention proposes *the construction of a device asmentioned which is simple and durable and which maybe manufacturedandsold at a reasonable cost.

For further comprehension of the invention, and ofthe objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:-

Fig. 1 is a perspective view of a hollow cement block constructedaccording to this invention.

.Fig. 2 is a transverse sectional View taken on the line 2.-2 of Fig. 1.i y Fig. 3is a perspective view of the open mesh material, illustratedin Fig. 2 used in the manufacture of the block.

Fig. 4 `is a perspective View of a form in which the blockf may be'conveniently manufactured.

Fig. 5 is a sectional view similar to Fig. 2 illustrating a'modicationof the invention.

Fig. 6 is a similar view to Fig. 2 but showing another modification ofthe invention.

The hollow concrete block according to this invention includes open meshreinforcement material I0 having a bottom I0' and side walls I!!a andassociated with a moisture-proof plate II, such as glass, extendingacross the top edges of the side walls and heldin an integral unit bycement I 2 arrangedupon thesides of the open mesh material and theplate.

Moreparticularly. the open mesh material IB A isconventionalreinforcementmaterial used concrete reinforcement constructions formedfrom sheetsstamped or in any other `manner formed with openings.

More particularly, the open mesh reinforcement Il) hasitheside walls.Illa formed with inturned bent edges Il)b upon which the moistureproofplate II is supported during the manufacture of the block. `Sirice'theopen mesh material is of open construction some of the cement I2 i willenter from vthe I. inside and extend to the outside as illustratedinFig. `2 of the drawing, so that in-reality the reinforcement materialIl)a Will be imbedded in the hollow concrete cement form. The side ofthe block provided with the moisture-proof plate II constitutes thefront-of the block and may be finished in any suitable fashion. Forexample a tile I3 is cemented together with it. `While this particulardesign is shown it should be borne in mind that the cement I2 itself maybe finished in a satisfactory manner or any'other type of finish knownat the present Cal time orto be discovered in the future may be appliedto the block.

In Fig. 6 the tile has been substituted by an ornamental layer ofconcrete cement I3 on which any suitable design may be formed. i

The process for manufacturing the block consists in theprovision of aform such as illustrated in Fig. 4 including a body consisting of abottom wall I4 and the side walls I5. This body is open at the top. Theopen mesh reinforcement material Il) illustrated in Fig.v 3 may be setinto the body and the parts are of such size that there will be a slightarea between the outer faces of the reinforcement material I and theinner faces of the body.

The rst step in the manufacture of the block consists in placing cementmaterial within the body upon the bottom I 4. Next the open meshreinforcement material is placed within the body and cement is filled inbetween the mesh reinforcement and forced into the reinforcement and thebody by a suitable tool so that some of the cement will cover .the innerside-of thereinforcement. In anyevent it is proposedto. cause the cementto encircle the bottom and the sides, also the inner sides of the openmesh material. The next step in the process consists in merely pressingthe moisture-proof plate H in position upon the inturned ends Ilb. Thencement is added at the top and in this manner the hollow block isconcluded. 1

In Fig. another embodiment of the invention is illustrated in which anarrangement is provided wherein the. hlbck i-sforrned- `with apair ofmoisture-proof plates II and `I ta Vslightly spaced from each other.More particularly the block includes open mesh material'. me having a`bottom wall I 6d and side walls |02: The upper free-edges Illf of. theside wall-s are turned inwards. A flange Ilis extended `inwardsfrorn'the side walls of the open mesh material Illc and is spacedslightly downwards from the inturned top edges If. This ange. Illgextends inwards to a greater' distance than the inturned edges- IIlf.arrangement is such that the moistufe-prooi plate IIa may be supportedupon the flanges ills- The compass of theplate I la is of' a smallersize than the area between the inturned. edges. ttf so, that the platemay easily assume its. position.. The top moisture-proof plate I.' I isof a sizey so as to be capable of resting upon the inturned edges I0?.

The block is manufactured with the cement t2 engaged upon the outerwalls of` the. reinforcement material and ever:- the. top of: the. tnpmois.- ture-proof plate I: tg: Thee arrangement. is such that there is asmall area IE- between the plates II and I Ia which serves .to preventor retard conduction through the front'` wall of. the block.

The process of manufacturing the block illustrated in Fig. 2. consistsinarranging the; open mesh reinforcement material. III.c within the form,such as illustrated in Fig. 4*, in amanner so that there is cement uponthe inner outer faces of the sides and bottom thereof "Thenv the plate II.u is placed in position; and n'al-l-y cement is engaged over the topof the plate II' and causedtojoin with the cement at the. sides. Thefront. face of the block maybe nished with a tile, such as tile I3.A

In actual' use these waterproof cement. blocks maybe alsoA lled cementyor other suitable material through holes by boring communicating holesbetween the adjacent blocks after they are stacked to.y form a wall',partition, etc.,

While I have shown andi described the preferred embodiment of myinvention, it is. to bei understood that I do not limit myself to theprecise construction herein disclosed and the right is reserved to allchanges and modications coming within the scope of the invention asdened in the appended claims.

Having thus described my invention, what I claim as new, and desire tosecure by United States Letters Patent isz- 1. A hollow cement block,comprising open mesh reinforcement consisting of mesh Inaterial having abottom and. side. walls in the form of a boxl with an. open top, a glassplate extending across the top edges of said side walls, and cementcovering the inner and outer sides of said open mesh material and saidplate and binding these parts together into a hollow unit.

2. A hollow cement block, comprising open mesh reinforcement consistingof mesh material having a bottom and side walls in the form of a boxwith an open top, a glass plate extending across the top edges of saidside walls, and cement covering the inner and outer sides of said openmesh materialand saidplatefand bindingl these parts: together into ahollow unit, the top edges ofv the reinforcement material being bentinwards and supporting said moistureproof' plate.

3. A hollow cement block, comprising open mesh reinforcement consistingof mesh material having a bottom and' side walls in the form of a boxwith an open top, a glass plate extending across the top edges of saidside wall-s, and cement covering the inner and outer sides of said openmesh material and said plate and binding these parts together into` ahollow unit, the side of the block provided with the moistureproof plateconstituting the front of the block, and being finished as the front ofthe block.

4. A hollow cement block, comprising. open mesh reinforcement materialhaving a bottom and side Walls', a ila-nge extended inwards from theside walls and spaced slightly down from the top edge, a moisture-proofvplate' resting upon said flange, a second moisture-proof plate restingacross theV tops of said side walls, and cement covering the inner andouter sides of said4 open mesh reinforcement material and top plate` andengaging the edges of said second plate and holding the-parts in a.hollow unit.

-5-. A hol-low cement block, cor-n'prising, open mesh reinforcementmaterial having a bottom and side walls, a ilange extended inwards fromthe side walls and spacedv slightly down from the top edge, amoisture-proof plate resting upon said ange, a second moisture-proofplate resting across the tops of said side walls, and cement coveringthe inner and outer sides of said open mesh reinforcement material andtop plate and engaging the edges of said second plate and holding theparts inV a hollow unit, the top edgesof said side walls being bentkinwards and said top plate restingthereon.

DAVID STANLEY CORWIN.

